Highlighter pen



FIG. 1 is a perspective view of a highlighter pen according to the present invention.

FIG. 2 is a front view of the highlighter pen of FIG. 1.

FIG. 3 is a left side view of the highlighter pen of FIG. 1.

FIG. 4 is a right side view of the highlighter pen of FIG. 1.

FIG. 5 is a top view of the highlighter pen of FIG. 1; and,

FIG. 6 is a bottom view of the highlighter pen of FIG. 1.

A rear view is omitted since it is a mirror image of the front view.

The features shown in broken lines in FIGS. 1, 3, and 4 illustrate those portions of the design that form no part of the claim. 

The ornamental design for a highlighter pen, as shown and described. 